Electric pocket-lamp.



E. KUHN-FREI.

ELECTRIC POCKET LAMP.

APPLICATION mm APR. 1 ms.

1,2852%. Patented Nov. 19, 1918.

Mbmsses. lime/2Z0) EMIL BURN-FEEL OF ZURICH, SWITZERLAND.

nnncrruc POCKET-LAMP.

Specification of Letters Patent.

Patented Nov. 19, 1918.

Application filed April 7, 1916. Serial No. 89,663.

To all whom it may concern.

Be it known that I, EMIL KUHN-FREI, a citizen of the SwissConfederation, residing at Neumiihle uai No. 8, Zurich, Switzerland,have invente new and useful Improvements in Electric Pocket-Lamps, ofwhich the fol lowing is a specification.

The present invention relates to a new and improved electric pocketlamp.

One object of the invention is to provide a pocket lamp having nogalvanic battery on replacing t e same by a dynamo driven by a sprlng.

A further object of the invention is to provide a device for tensioningthe spring whilethe lamp is used.

The present invention comprises other features which will appear in thecourse of the subjoined description.

Reference is to be had to the accompanying drawings forming part of thisspecificatlon, in which similar characters of reference indicatecorresponding parts in all the figures.

Figure 1 is a side section-on line AB of Fig. 2 showing the interior ofthe pocket lamp.

2 is a section on line OD of Fig. 1.

Fig. 3 is a top view of the lamp shown in Flg. 1.

In the drawings 1 represents a casing of sheet metal. A side 2 of thecasing 1 is hinged to the casing 1 by means of a pin 3 fixed in thefront wall 7 and in the back wall 8 of the casing 1. On the pin3 thereis a coiled spring 4 one end of which is fixed to the pin 3 the otherend rests on the wall 2. The sprin 4 tends to hold the wall 3 in theposition sfiown in Fig. 1. On the wall 2 a pawl 5 is linked at. 6 whichpawl engages a ratchet wheel 9 fixed on an arbor 10. The arbor 10 isrotatably mounted in the walls 7, 8. On the arbor 10 the one end of astrong coiled blade spring (not shown) is fixed'the other end of whichis fastened to a barrel 11 which is provided with a toothed rim 12. Therim 12 is in mesh with a toothed gear 13 journaled on the back wall 8.The gear 18 drives by means of a toothed gear 14 an armature 15 rotatablmounted in the walls 7 and 8. The armature 15 rotates between the poles16, 17 of a magnet 18 arranged in the casing 1. On the armature thereare two coils 19, 20 which are connected by insulated Wires to a lamp 21mounted on the front wall 7 of the casing 1. On the back wall 8 of thecasing 1 a retaining pawl 22 is arranged which engages the ratchet wheel9, moreover there is fixed a pin 23 engaging a slot 24: in the side wall2. Said slot 24 limits the movement of the side wall 2. On the back wall8 a disk 25 is rotatably mounted through which the one end of the arbor10 projects. On the disk 25 an arm 26 is hinged which arm is bent-otl'at 27. The free end of the arm 26 rests within a recess 28 arranged onthe casing 1. The arm 26 is provided with a square hole 80 and the arbor10 with a square head 32 which enters the hole 30 as soon as the arm 26is brought in the position shown in Fig. 2 in dotted lines. Arm 26 isused for turning the arbor 10 and tensioning the spring at the same timeit serves for fixing the lamp on a wall, etc. One or more sets of gearsmay be arranged between the barrel and the armature.

To make use of the lamp the spring 1s tensioned and the armature is setin rotation. The lamp is held in one hand and by-pressing the side wall2 and the casing against each other the ratchet wheel is rotated and thespring re-tensioned.

Having thus described my invention I claim as new and desire to secureby Letters Patent:

1. A pocket lamp includin a casing comprising front, rear, upper, lowerand side walls, one of said side walls being hingedly secured at itsupper end adjacent the upper wall of the casing, a current generator foroperating a lamp a spring motor including a winding shaft for drivingsaid generator, and means for keeping such spring motor constantlyoperating, such means including a pawl and ratchet mechanism, theratchet being mounted upon the winding shaft and the pawl having one ofits ends ivoted to said hinged side wall, the other en engaging the saidratchet.

2. A pocket lamp including a casing comprising front, rear, upper owerand side walls, one of said side walls being hingedly secured at itsupper end adjacent to the uper wall of the casing, a current generatoror operating a lamp, 9. spring motor for driving said generator, meansfor keeping such spring motor constantly o crating, such means includinga pawl an ratchet mechanism, the ratchet being mounted upon In testimonywhereof I aflix my sig: the winding shaft and the awl having one ture inpresence of two witnesses.

of its ends pivoted to said inged side wall, E KUHN FRE1 the other endengaging said ratchet, and re- 5 silient means engaging the hinged sideWall Witnesses:

for swingingthe lower end thereof to its out- CARL GUERIN, ermostposition. BERTHA C. Gnoe.

